Gas-engine casing or frame.



PATENTED FEB. 4, 1908. I. P. MILLER & L. M. RAKESTRAW.

GAS ENGINE CASING 0R FRAME. APPLICATION FILED PEB.4.1907.

v 3 SHEETS-SHEET 2- WITNESSES.

PATENTED FEB. 4, 1908. I. P. MILLER '61: L. M. RAKESTRAW.

GAS ENGINE CASING OR FRAM'E.

APPLICATION FILED FEB. 4. 1907.

a SHEETS-SHBET is.

IN VENTUFg of Fig. 1;

UNITED STATES PATENT @FFTQE.

IRVINGPHILLIP MILLER AND LAWRENCE MONROE RAKESTILMY, OF TOLEDO, OHIO,

ASSIGNORS TO WM. M. HOGLE AND LAGEY if. '\\'lLLI.-\i\1S,.Ol- TOLEDO,OHIO.

GAS-ENGINE CASING OR FRAME.

Specification of Letters Patent.

Patented Feb. 4, 1908.

T 0 all whom it may concern:

Be, it known that we, IRVING PHILLIP MILLER and LAWRENCE h/IONROE RAKE-sTRAW,citizens of the United States, residing at Toledo, in the countyof Lucas and State of Ohio, have invented new and useful improvements inGas-Engine Casings or Frames, of which the following is a specification.

Our invention relates to'explosive gas engines, and especially to theconstruction of .the'castingor frame, the object being to obviate theuse of cores as far as possible in casting the frame and in formingspaces to receive the water which circulates about the cylinder, and theexhaust gases.

These objects are readily accomplished by casting the casing with twoflat sides, opposite each other, and with openings for the water,exhaust, and compression and crankchambers, and then securing to eachflat side a-plate to form said chambers coin lete.

Other objects of the invention will become ap arent upon a fulldisclosure thereof.

{making two of the sides flat, the casting can e done b em loying asplit or sectional attern, whic wil permit of each section iieingwithdrawn from opposite sides.

In the drawings -Figure 1 is avertical section of ,our improved'enginecasing; Fig. 2, a section, art y broken away,-

Fig. 1; Fi 4, an inner face view of one of theside pfates; Fig. 5, aside view of one of the cran -shaft bearings; Figs. 6 and 7,

bottom and top plan views, respectively, of ates the engine-casing,showing the side p attaehed, and Fig. 8 a view in elevation of theexhaust side of the casing.

Referring tothe several views, the numeral ,1 indicates the castingforming the main'portionof the engine casing, and the. same is providedwith the piston cylinder 2,

and lower compression and crank-shaft chamber -3. In making the castingopen spaces 4 .and' 5 are provided toform part of .a water chamber oracket around the piston- ,cylinder, andan' 0 on space 6 to provide partof anexhaust-c amber. The compressionsand crank-shaft chamber is castintegral with the water-j acketed cylinder, the cylinder and of thecasting bein substantially square. These are 'iiiri 0mm, eatures of ourinvention, and ten materially to lessen the cost on line mac' 1g. 3, asection online yy of said.

oi engine.

parallel sides,. openings for the water, ()X'" and simplify theconstruction of this type.-

By making the casting with two vertical haust, and lowercompression-chambers are formed by using a split or sectional pattern,which permits of each sectionbeing drawn away from opposite sides,casting being aeing common castings. The casting is provided with theusual openings for the mixingvalve, s )ark plug, and exhaust pipe, as

provided with a water-inlet 18.

The water-chamber is provided with a -water-pipe or duct 19, throughwhich the overflow water is conducted to the exhaustthe water-jacket cyinder, as shown in Fig. 1.

chamber 6.- This ipe is cast integral with complished by the ordinarymethod of mak indicatec by numerals 7, 8, and 9, respecthe crank-shaft17, and one of said plates is I Having fully described our: inventionwhat we claim, is-

1. The'combination with an integral casting for a ras engine having anopen space 3 at one em for a crank chamber, a s ace '6 for exhaustgases, and spaces 4 and 5 or water, of two lates each of the length ofthe casting a plied to opposite sides of the same and cibsing the saidspaces so as to form inclosed crank, water, and exhaust-gas chambers."

2. The combination with an integral casting for a gas engine having acylindrical opening 2 at one end to ,receive a piston,ga space 3 at theopposite end for a crank chamber, spaces 4 and 5 to receive wateiyland aspace 6 for exhaust gases, said spaces being formed by the walls of thecastin of side plates secured to the two 0 on sides of the casting, saidplates entirely c osing the crank spaces 4 and 5 and space 6 an inclosedwater gases outside the cylindrical opening for the piston. 3. Thecombination with an space andan inclosed space for exhaust chamber space3, and forming with the integral castamass ing for a gas engine havingtwo of its oppocasting, with open spaces bounded by the 15 site sideslyingin substantiallyparallel planes, walls, of two plates of the samelength as the casting and removably secured to said two parallel sidesof the casting and closing said open spaces so as to form inclosedspaces for water and a crank. I 20 In testimony whereof we alfix oursignatures in presence of two witnesses lltllNG I'lllLLIP MILLER.

LAWRENCE MONROE RAKESTRA W. Witnesses:

GEORGE UHAMPE, W. M. homes.

a longitudinal cylinder opening at one end, spaces for Water and exhaustgases adjacent t e cylinder openin and a space for. a crank chamber at te other end, of two plates, one secured to each of the said oppositesides of the casting and entirely closm the spaces for the Water,exhaust ases an the crank, whereby inclosed spaces ior water,

4. The combination with a casting for a gas engine having two of itssides in parallel planes extending from end to end of the 1

